What is the best program to use?
What is the best stop motion program to use?
The best stop motion program to use is Dragonframe. Currently, the newest version is 3.0. Its audio elements are particularly amazing and it's also quite easy to work with. You can easily download it at http://www.dragonframe.com/features.php
Cabin Fire by Chris Dorner Software. It stops motion quickly and automatically covers up any errors.